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    • 64. 发明申请
    • Method for adjusting gain in radio receiver
    • 调整无线电接收机增益的方法
    • US20060211392A1
    • 2006-09-21
    • US11361600
    • 2006-02-24
    • Masaaki Suzuki
    • Masaaki Suzuki
    • H04B1/06H04B7/00
    • H03G1/0088H03G3/3052
    • Each of variable gain amplifiers includes a P-side differential cell and an N-side differential cell, and the gains of the variable gain amplifiers are controlled depending on a difference between a P-side control current to control current flowing through the P-side differential cell and an N-side control current to control current flowing through the N-side differential cell. A plurality of gain data items are acquired for the variable gain amplifiers while varying the difference between the P-side control current and the N-side control current. A gain differential pattern between the variable gain amplifiers is obtained based on the acquired gain data. Based on the gain differential pattern, at least one of the P-side control current and the N-side control current of each of the variable gain amplifiers is varied.
    • 各可变增益放大器包括P侧差分单元和N侧差分单元,并且可变增益放大器的增益根据控制流过P侧的电流的P侧控制电流之间的差来控制 差分单元和N侧控制电流,以控制流过N侧差分单元的电流。 在改变P侧控制电流和N侧控制电流之间的差时,为可变增益放大器获取多个增益数据项。 基于获取的增益数据获得可变增益放大器之间的增益差分模式。 基于增益差分模式,改变每个可变增益放大器的P侧控制电流和N侧控制电流中的至少一个。